Typewriter



Aug. 4, 1925. 1,548,467

o. A. HoKANsoN Patented Aue. 4, 1925.

tlNlTf. STATES e asian? Trios.

OTTO A. HO'KANSON, or woonsTocIi, Trimmers, assis-NOR To wooDsTooK TYPE-wnr'rnn COMPANY, or wooDsTooK, ILLINOIS, A CORPORATION on ILLINOIS.

TYPEVVRITER.

Application filed December 14, 1923. Serial No. 680,584.

T0 all whom t may concern:

Be it known that I, OTTO A. HonANsoN, a citizen of the United States,residing at lVoodstock, in the county of McHenry and State of fllinoishave invented certain new and useful lmprovements in Typewriters, ofwhich the following is a specification.

This invention relates to a typ/writing` machine in which the parts arefoldable relative to one another' to bringl them into compact relationfor transportation, and has for its object .the provision of such amachine which shall be of improved construction and operation and inwhich the platen carriage may be mounted on a folding part and operatedby a power device mounted on a different portion of the machine.

The invention is exemplified in the combination and arrangement of partsshown in the accompanying drawings and described in thefollowingspecification, and it is more particularly pointed out in theappended claims.

In the drawings,-

A'Fig. `1 is a fragmentary vertical sectional View of one form oftypewriting machine embodying the present invention.

Fig. 2 is a fragmentary top plan view with parts in section showingl themecha-- nism illustrated in 'Fig'. 1.

. Fig. 3)r is a detail sectional view on line 3--3 of Fig. 1.

Figs. 4 and 5 are elevations of the bracket by which the operating partis attached to the carriage.

In the form of typewriter illustrated in the `drawings the numeral 10designates a main base yframe having the usual key levers 11 mountedthereon and having sublevers l2 connected by vlinks 13 to the typebars14 pivotally mounted on a typebar segment 15 supported on the mainl baseframe. rllie main base frame may comprise an inner skeleton frame plat-e16 at the side of the machine and an outer sheet metal frame 17. Theseframe members are attached to one another and spaced apart by suitablespacing blocks 1S, and the top edge of the outer frame member 17 is bentinwardly to form a finishing nange 19, as shown in Figs. 2 and 3. Apivot bolt 2O entends through the two frame members 16 and 1T at the topof the base frame about midway of the machine and forms a pivotalsupport vfor a folding arm 21, which carries the platen bed 22. Asimilar pivot and arm is provided at the opposite side of the machinefor the opposite end of the platen bed. The carriage A3 is slidablymounted on ways 24 supported on the platen bed 22, and .ball bea-rings25 are preferably provided to facilitate easy movement of the carriage.A rack 26 is attached to the carriage 23 and meshes with a pinion 27carried by a .stud shaft 28 journaled in the carriage bed. The lower endof the stud shaft 28 supports an escapement wheel 29 controlled by anysuitable escapement mechanism, not shown. A bracket 30, shown in Figs.1, 4 and 5, is attached to the rear of the carriage 23'and is providedwith a slot 31 for receiving a carriage propelling cord 32. The end ofthe cord 32 is provided with a ball or nut 33 for retaining the cord inthe slot 31. Adjacent the end of the carriage bed a bracket 34 yisstruck downwardly and supports a pulley 35 journaled thereon. The cord32 passes around the pulley 35 and thence baokwardly adjacent the sideof the folding` arm 21 to a pulley 36 journaled on a bracket -37 struckinwardly from the frame member 16. From the pulley 30 the oord 32 passesdownwardly to a spring drum 38 supported by the frame member 16. Thespring drum 3S may be of any well known and approved construction and ispreferably provided with a double pawl 39 by which the tension of thespring on the cord 32 may be regulated. The inner end of the pivot bolt20 is provided with a circumferentially grooved stud or fair leader 40,about which the cord 32 passes as shown in broken lines in Fig. 1 whenthe platen carriage is moved to its folded position. `When the platencarriage is returned to its operating position the cord 32 willautomatically return to the 'groove in the pulley 30 to operate thecarriage under control of the escapement mechanism. It will be seen thatin this way it is possibleto mount the vdrum on the side of the mainframe where itwill not interfere with the parts carried on the platencarriage support. The connection between the drum and the carriage isunbroken during` the folding operation so that the carriage is alwaysoperatively connected with the drum irrespective of the position of thecarriage support. Passing the oord about a guide adjacent the pivot ofthe folding support makes it possible to use a non-separable conm lll)nection between the carriage and drum while the drum is mounted on astationary portion of the frame and the carriage is foldable.

I claim: c

l. In a compactible typewriter, a pair of trame members movable relativeto one another, a platen carriage mounted on one of said members, anactuator for said platen carriage mounted on the other of said members,and a non-separable connection for operating said platen carriage Jfromsaid actuator.

2. A typewriter comprising a main frame, a platen carriage frame mountedon said main frame and movable from an operative to an inoperativeposition thereon, a platen carriage movaloly mounted on said platencarriage frame, an actuator mounted on said main trame, and-a device forconnecting said platen carriage to said actuator, said device remainingintact during and following operation of said platen carriage frame.

S. A typewriter comprising a pair of frame members pivotally connectedto one another, a platen carriage movably mounted on one of said framemembers, an actuator for the platen carriage mounted on the other ofsaid frame members, a flexible device connecting said platen carriageand actuator, and a guide for said flexible device mounted adjacent thepivotal connection between said frame members.

el. A typewriter Vcomprising a main base frame, a platen carriage frame,an arm pivoted on said main base frame about midway tore and aft ot saidframe and supporting said platen carriage frame at the free end thereof,a platen carriage mounted to travel on said platen carriage frame, anactuator for said platen mounted on said main base trame, a flexiblemember connecting said platen carriage and actuator, and a guide forsaid flexible member adjacent the pivotal connection or" said arm andmain base frame.

5. A typewriter comprising a main frame, a platen carriage :tramepivotally mounted on said main frame to move from an operative to aninoperativeposition, `a platen carriage on said platen carriage frame,escapement mechanism for controlling said platen carriage, a springactuator mounted on said main frame for moving said platen carriage, andmeans for connecting said spring actuator and platen carriage at allpositions ot' said platen carriage frame relative to said main frame.

6. In a folding typewriter, a main frame, a platen carriage framepivotally mounted on said main frame, a platen carriage movable on saidplaten carriage Jframe, a spring drum mounted on said main frame, aflexible member connecting said spring drum and platen carriage, and apulley on said main trame adjacent the pivotal connection between saidmain frame and said platen carriage frame for guiding said exibleconnection to permit folding of said platen carriage trame whilemaintaining operative connection between said platen carriage and drum.

7. In a folding typewriter, a main frame having a side frame member, adrum mounted on said side frame member, an arm pivoted on said sideframe member, a platen carriage trame mounted on said arm, a platencarriage mounted to travel on said platen carriage frame, a flexibleconnection between said drum and platen carriage, a pulley adjacent thepivotal connection between said main frame and platen carriage framei'or guiding said flexible connection,and a second pulley mounted onsaid platen carriage trame adjacent the path ci movement ot said platencarriage for guiding said flexible connection.

8. In a typewriting machine, a pair of pivotally connected tramemembers, an actuator on one of said frame members, a device to beoperated by saidactuator on the other ot said frame members, a flexibleconnection between said actuator and operated. device, and a guide forsaid flexible connection about which said flexible connection is bentduring folding movement of said frame members relative to one another.

9. A folding typewriter comprising a base Y frame, a platen carriageframe, a pivotal connection between said base frame and platen carriagetrame, an actuating device on said base frame, an actuated deviceon saidplaten carriage frame, a flexible connection between said actuated andactuating devices, and aguide carried by said base frame concentric withsaid pivotal connection about which said flexible connection is foldedduring relative folding movement of said base frame and platen carriageframe. 10. In a typewriter, a pair of pivotally connected frame members,a flexible connecter from one of said frame members to the other, and apair of guides for said flexible connecter positioned adjacent thepivotal connection between said frame members.

11. In a typewriter, a pair ot pivotally connected frame members, aflexible connecter extending from one of said frame members to theother, and a pair of guides for said flexible connecter adjacent thepivotal connection between said frame members and arranged toalternately receive said flexible connecter as said frame members arefolded relative to one another'.

l2. In a typewriting machine, a base frame, a platen carriage framepivotally mounted on said base frame, a flexible connecter extendingbetween said base frame and platen carriage frame, a guide pulleymounted on said base frame adjacent thepivotal connection between saidbase trame and lll platen carriage frame and arranged to receive saidflexible connecter for one position of said platen carriage frame, and asecond guide member adjacent said guide pulley for receiving saidflexible connecter when said platen carriage frame is folded to adifferent position on said base frame.

13. ln a typewriter, a base frame having a vertical side Wall, a springdrum mounted flativise adjacent the face of said side Wall, a foldableframe member pivotally mounted on said side Wall, a platen carriagemovable on said frame member, a flexible connection extending from saidspring drum to said platen carriage, and a guide adjacent the pivotalconnection between said side Wall and pivoted frame member for retainingsaid flexible connection in operative position during folding movementof said platen carriage frame.

A. In a typeivriting machine, a frame having an upright side Wallprovided with spaced frame plates, a pivot bolt connecting` said frameplates, an arm pivotally mounted on said pivot bolt, a guide pulleycarried by one of said spaced frame members, a guide mounted on saidpivot bolt, and a flexible member passing between said guide pulley andsaid last mentioned guide and movable from one to the other When saidpivot member is rotated on said pivot bolt.

15. typewriting machine comprising` a main frame, a platen carriageframe pivotally mounted on said main frame, a platen carriage movable onsaid platen carriage frame, a spring drum mounted on said main frame, aflexible member secured to said drum at one end and attached to saidplaten carriage at its other end, a pulley on said platen carriage framearranged adjacent one end thereof and about which said flexible memberis -,uided, and a guide for said flexible member adjacent the pivotalconnection between said main frame and platen carriapje frame forretaining said flexible member adjacent said pivotal connection for allpositions of said platen carriage frame.

16. In a typeivriting machine, a pair of pivotally connected framemembers, a flexible connecter extending; from one of said frame membersto the other, and a pair of guides adjacent the pivotal connectionbetween said frame members for retaining said flexible connecteradjacent said pivotal connection irrespective of the position of saidframe members relative to one another.

17. In a typewritingmachine, a main frame, a platen carriage framepivotally n'xounted on said main frame, a platen carringe mounted totravel on said platen carriage frame, a bracket on said platen carriage,a guide pulley on said platen carriage frame adjacent one end thereof, aguide pulley on said main frame adjacent the piv otal connection betweensaid main frame and platen carriage frame, a second guide adjacent saidlast mentioned guide pulley, a spring drum mounted on said main frame,and a flexible connecter secured to the bracket on said platen carriageand passing over the guide pulley on said platen carriage frame andthence between the guide pulley on said main frame and the guideadjacent thereto and thence to said spring drum, thus providingy anoperative connection between said spring drum and platen carriage forexerting' tension on said platen carriage for all. positions of saidplaten carriage relative to said main frame.

In testimony whereof I have signed my name to this specification on this11th day of December, A. l). 1923.

OTTO A. HOKANSON.

